Rod protector



April 28, 1925.

J. D. NIXON ROD PROTECTOR JA i, I

Filed De. 5, 1924 ATTORNEYJ,

Patented Apr. 28, 1925..

UNITED STATES PATENT OFFICE.

J EDDY D. .NIXON, OF HOUSTON, TEXAS.

ROD PROTECTOR,

Application filed December 5, 1924. Serial No. 754,051.

To all whom it may concern:

Be it known that I, J EDDY D. NIXON, a

citizen of the United States, residing at reciprocated through a pumprod, or sucker rod, and inasmuch as the well bore is not always straightthis rod bears against thev casing or liner, in the bore, at the bends,or

turns, of the bore and soon wears b reason of'friction. n The suker rodis ma e up of sections, usually connected together by enlarged threadedjoints, and this friction with the walls of the bore often wears awayone or more of these joints. The weakening of the sucker rod sometimescauses it to part, and in all cases makes it too Weak for safe use. Itis the chief object of this invention to afford protection of the rodagainst wear.

Another object of the invention is to provide a rod protector of thecharacter described which may be cheaply roduced and readily applied to,or removed rom, the rod, and which will sustain all the friction andwear incident to the reciprocation of the rod.

With the above and other objects in view this invention has particularrelation to certain novelfeatures of construction, operation andarrangement of. parts an example drawings, wherein like numerals ofrefer of which is given in this specification and illustrated in theaccompanying drawings,

wherein Figure -1 shows a fragmentary side view of a pump rod, partly insection, with a pro tecgzlor applied thereto, and shown in section, an

Figure 2 shows a sectional view thereof taken on the line 22 of Figure1.

Referring now more particularly to the once desi nate similar parts ineach of the figures, the numerals 1, 1 designates the adjacent sectionsof a pump rod. One section has an enlarged internally threaded end 2 andthe adjacent end of the other section has a reduced threaded pin 3adapted to be threaded into the end 2. On opposite sides of the joint,thus formed, the sections 1 havei the enlargements 4, 4, usually ballshaped or spherical in form. r

The protector is preferably formed of two.

lengthwise sections 5 and 6, with flat abutting faz'es 7 and 8 adaptedto fit closely together when the protector is assembled. Each section 5and 6 is arcuate in cross sectional contour and thus adapted to fitclosely around the rod, and they may be provided with registeringcavities 9 and- 10, to form a recess to receive the correspondingenlargement 4.

Each protector has suitable vertical fluid courses 11 to provide amplespace for the upward passage of the fluid being pumped.

The inner side of each section of the protector has an arcuate groove12, preferably dovetailed in from, said grooves registering when thesections are assembled around the rod, and forming, in effect, a mold. Aport 13 is provided through one of the protector sections, leading intothe mold. When the sections are assembled around the rod fusible metalmay be poured, in molten state through said port 13- to fill said moldand this metal, when it cools will form a tie or anchor to secure therod.

The protector may. be made of any suitable metal, as for example bronze,and any fusible metal, as lead, may be used to form the securing mold ortie tosecure the protector sections to ether. The mold may also beformed, if desired, of registering arcuate bores, instead of the arcuategrooves, shown.

These protectors rod at suitable intervals and obviously will protectthe rod against wear and will pre vent the enlarged end, or head 2 fromwearprotector around the ing off on one side to such an extent that itwill releasethe pin 3 and permit the rod to part. 7

When the protector has worn down to such an extent that it is advisableto replace it witlra new one the sections maybe forced apart by the useof a chisel, or other are. placed around the" similar implement, so asto break the molded I tie and the sections will then fall apart.

The enlargements'l may be utilized, as illustrated, to prevent theprotector from moving lengthwise on the rod, but this is not absolutelynecessary, as the protector may be fitted to the rod so closely that itwill not have any lengthwise play thereon.

What I claim is 1. A red protector formed of lengthwise sectionsdesigned toconform to and fit around a rod when in assembled relation,and a tie member Within the protector and securing the sections inassembled relation.

2. A red protector formed of lengthwise sections designed to conform toand fit around a red, when assembled, said assembled protector having alengthwise rod bearing through it formed with an enlarged cavity and asingle, annular fusible metal tie securing said sections assembled.

3. A red protector including sections designed to fit around a red, whenassembled, said protector having an annular mold, and a'tie of fusiblemetal in said mold.

4. A rod protector including sections designed to fit around a rod, orthe like, when assembled, said assembled sections having an internalmold provided with an inlet port, and a tie of fusible metal in saidmold.

5. A red protector including sections adapted to be fitted around a rod,and the like, each section having a transverse cavity, said cavitiesregistering, when the sections are assembled, to form a mold.

6. A rod protector formed of sections designed to fit around a rod, whenassembled, and a fusible metal tie securing said sections in assembledrelation.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JEDDY D. NIXON.

lVitnesses E. V. HARDWAY, AUG. S. Ko'rHMANN.

